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. 2015 Dec 10;6:1370. doi: 10.3389/fmicb.2015.01370

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Copyright © 2015 Huang, Song, Yang, Dong, Hu and Gao.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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The sequences and structure of the Cyanothece 51142 oriC regions (not to scale). The predicted DnaA boxes 1–3 of the circular and linear chromosomes and their orientation are represented by gray pentagons. The DnaA box sequence for the circular chromosome is all TTTTCCACA, as shown in the DnaA boxes logo. The sequences of the two DnaA boxes from the linear chromosome are TTATCCATA and the other one is TTATCAACA. (A) The oriC of the circular chromosome of Cyanothece 51142 was predicted to be next to the start of the dnaN gene, and the dnaA gene is located downstream of the origin of the circular chromosome. The sequence of DnaA boxes is TTTTCCACA. (B) The oriC of the linear chromosome has been found in the region from 373518 to 373849 nt. The three DnaA boxes of both circular and linear chromosomes have been tagged.